StrayBan possum deterrent 

Also deters stray cats and dogs.

StrayBan is an easy to install, chemical free, high tech proven product that is in use in many homes throughout Australia and fits easily to the eaves or fascia areas of your home or garden structures.

The sound being emitted from StrayBan cannot be heard by the human ear, yet the effective alternating sound pressure waves and rotating frequency ensure that possums and other pests are repelled.

Just plug in and off you go.